I have an external font and be able to use it in my documents on my desktop computer with MiKTeX 2.9.
Now I try to use the same font with portable MiKTeX 2.9. The external font is located in my local TeXFM. With normal MiKTeX I need to call
initexmf --edit-config-file updmap
to open the local file
updmap.cfg for inserting
Map thefont.map. Portable MiKTeX (starting from the Command Prompt you get from the taskbar entry for MiKTeX portable) opens the system
<portable-MiKTeX>\miktex\config, which is changed always you update portable MiKTeX.
It is a quick and very dirty workaround to change the system file until the next update, but how can I tell portable MiKTeX to use the external font and remember it over the next update?
For me this is an unwanted behavior, I would tend to see it as a bug.